Notoriously Appreciated Me!!

I'm the heart of a million questions in your math textbook,
 I can give your head and heart a great shook!
I'm universally appreciated,

Sometimes I am universally hated!!
I am the king of the hollywood of Mathematics !
Without me there's no arithmetic, algebra or statistics!
I am not a black and white outdated guy, You will find me, if only you try!


Space X, Iphone X, and countless big brands have embraced me!
 They have placed me at the forefront of technology!
Several times, I have made it to hollywood,
If you haven't watched captain Jack Sparrow's map, then now you should!!

 I'm not pretentious, self exaggerating,
 For mathematicians, I am really really exciting!
I'm honest and open to my insecurities and vulnerabilities.
Sometimes, I face an existential crisis!!

I have also significant role in biology and geography!
I'm notoriously famous for being something, whom you nowhere see,
 I'm π, 1, 2, 6, or 0.666 depending on the circumstances,
 You will not find me only be some glances!
 I don't change my colours,
It's just I don't have a true colour!

As if the invisible cloak on me wasn't enough,
Sometimes, I make your life tough!
 If I come in fulls in your report card,
You will get rasgulla as reward!

 If I come in the shape of an eggs
Then you may break for this you may have hands or me legs!
For this you may hate me

But, it is your result, so I am not sorry!
Hey please don't be shy,

Just guess who am I?